Two earth satellites `A` and `B`, each of mass `m` are to be launched into circular orbits about earth's centre at altitudes `6400 km` and `19200 km`, respectively. The radius of earth is `6400 km`. Find (i) the ratio of potential energy of `B` to that of `A`, (ii) ratio of kinetic energy of `B` to that of `A` and (iii) which one has greater total energy?

Explanation

To solve the problem, we need to calculate the potential energy, kinetic energy, and total energy for two satellites, A and B, at different altitudes above the Earth's surface. Here's how we can do it step by step:

### Given Data:
- Mass of each satellite, \( m \)
- Radius of Earth, \( R_E = 6400 \, \text{km} \)
- Altitude of satellite A, \( h_A = 6400 \, \text{km} \)
- Altitude of satellite B, \( h_B = 19200 \, \text{km} \)

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